CN112460348A

CN112460348A - Pipeline connecting structure and method

Info

Publication number: CN112460348A
Application number: CN202011486575.0A
Authority: CN
Inventors: 甘志宏; 甘洋; 王子昆; 刘锦程
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-03-09

Abstract

The invention relates to a pipeline connecting structure, which comprises a sleeve sleeved on a pipe body, wherein two ends of the sleeve are symmetrical, the pipe body to be connected is arranged at two ends of the sleeve, the sleeve slides along the pipe body, and locking parts at two ends of the sleeve are used for reversely locking or releasing. The invention has novel structure, and particularly adopts the structure of split combination design for the connecting part of the connecting piece, thereby not only being convenient to disassemble and assemble, but also being more convenient to accurately maintain, reducing the waste of materials and improving the effective comprehensive utilization rate of the materials.

Description

Pipeline connecting structure and method

Technical Field

The invention relates to a connecting structure, in particular to a pipeline connecting structure and a connecting method thereof, belonging to the field of connecting structures.

Background

At present, the connection of a pipeline system is diversified, but most of the pipeline systems require the connection of pipes made of the same material, but different materials are connected, for example, a steel pipe is connected with a plastic pipe, a hot-melt plastic pipe is connected with a bonding plastic pipe, a copper pipe is connected with a stainless steel pipe, and the like, and an additional adapter is required; or the joint part connected with the pipe is processed, in order to meet the reliability of the connection part, the thickness of the whole pipe is often increased, so that a great deal of waste of materials is caused, the use cost is increased, and meanwhile, inconvenience is brought to installation and maintenance.

In the existing connecting structure of the clamping and pressing type pipe fitting, the two sides of a convex ring at the female end of a joint pipe are generally crimped; the connection structure does not have buffering shock resistance, and under the working condition of large temperature, pressure and stress change, the fixedly connected parts on the two sides of the convex ring at the socket end of the joint pipe are easy to deform and loosen, so that leakage and connection failure are caused, and the connection of the two sides is time-consuming and labor-consuming.

At present, the pipeline still has the problem that the leakproofness is not good, is not split type structure, and the dismouting is also troublesome, therefore, needs to improve above-mentioned defect.

Disclosure of Invention

In order to solve the problems, the invention provides a pipeline connecting structure and a pipeline connecting method, which have good sealing performance and convenient disassembly and assembly, and the technical scheme of the invention is as follows:

the utility model provides a pipeline connecting structure, includes the sleeve of cover on the body, sleeve both ends symmetry, and the sleeve both ends are located to the body that needs to connect, and the sleeve slides along the body, carries out reverse locking or unclamps through the retaining member at sleeve both ends.

Further, the inner side of the end part of the sleeve is provided with a sealing ring accommodating groove, the outer side of the end part of the sleeve is provided with threads, the sealing ring is arranged in the sealing ring accommodating groove, and the sealing ring is fixed in the sleeve by a sealing ring retaining ring.

Further, the retaining member includes snap ring fixation nut, adjusting nut and reverse snap ring, snap ring fixation nut inboard from the top down include with adjusting nut complex screw thread, snap ring hold the chamber and with sleeve outside complex screw thread, the reverse snap ring is located the snap ring and is held the chamber, adjusting nut screw in snap ring fixation nut in-process, the adjusting nut bottom is pressed reverse snap ring front end chucking and is outwards turned over for the body can slide.

Furthermore, the upper side of the sealing ring baffle ring is provided with a ring groove which can accommodate the outward turning of the reverse snap ring, and the lower side of the sealing ring baffle ring is step-shaped and matched with the sealing ring in shape.

Further, reverse snap ring includes the ring body, and circle and excircle interval are equipped with logical groove in the ring body, and the ring body internal diameter is less than the body, and circle and excircle are in the coplanar not, and the snap ring holds the chamber in the ring body outside card is located, and the inboard card of ring body is on the body, and under adjusting nut's the pressing down, the side direction turns up in the ring body.

Further, the sealing washer internal diameter matches with the body internal diameter.

Further, the inner diameter of the adjusting nut is matched with the inner diameter of the pipe body.

A pipeline connecting method is carried out by using the pipeline connecting structure, and the specific process is as follows:

combining the connecting structures, fixing a snap ring fixing nut on the sleeve, enabling a reverse snap ring to press a sealing ring baffle ring, enabling the sealing ring baffle ring to press a sealing ring, enabling the sealing ring baffle ring and the sealing ring to be located in a sealing ring accommodating groove, and rotating an adjusting nut towards the direction of the sleeve, enabling the adjusting nut to press the inner side of the reverse snap ring, and enabling the reverse snap ring to press the inner side to turn outwards;

inserting the pipeline to be connected into the sleeve from the adjusting nuts at the two ends of the sleeve, and extending the pipeline into the sleeve to enable the sealing rings at the two ends to be attached to the pipe body;

rotating the adjusting nut in the opposite direction to enable the reverse snap ring to be tightened and clamped on the pipe body towards the direction of the pipe body, and removing the adjusting nut to enable the connecting structure to be integrally fixed on the pipe body;

when the pipe connecting structure is disassembled, the adjusting nut is rotated towards the sleeve direction, so that the adjusting nut presses the inner side of the reverse clamping ring, the inner side of the reverse clamping ring is outwards turned again, and the connecting structure is separated from the pipe body.

Furthermore, the outside of the pipe body is provided with a positioning groove, and the reverse snap ring is clamped in the positioning groove in a locking state.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention has novel structure, skillfully clamps and releases through the design of the reverse snap ring, and simultaneously leads the reverse snap ring, the baffle ring and the sealing ring to be tightly connected, thus having better sealing property.

(2) The connecting part of the connecting piece adopts a structural form of split combination design, so that the connecting piece is convenient to disassemble and assemble, is more convenient to accurately maintain, reduces the waste of materials, and improves the effective comprehensive utilization rate of the materials.

Drawings

FIG. 1 is a schematic structural view of a connecting tube body of the connecting structure of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic diagram of B-B of FIG. 2;

FIG. 4 is a schematic view of a snap ring retaining nut;

FIG. 5 is a cross-sectional view of the snap ring retaining nut;

FIG. 6 is a schematic view of the construction of the sleeve;

FIG. 7 is a schematic structural view of a reverse snap ring;

FIG. 8 is a front view of the reverse snap ring;

FIG. 9 is a side view of the reverse snap ring;

FIG. 10 is a schematic view of a packing retainer ring;

FIG. 11 is a schematic view of the construction of the seal ring;

fig. 12 is a schematic view of the structure of the adjusting nut.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples without making any creative effort, shall fall within the protection scope of the present invention.

Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art. The use of "first," "second," and similar terms in the present embodiments does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "Upper," "lower," "left," "right," "lateral," "vertical," and the like are used solely in relation to the orientation of the components in the figures, and these directional terms are relative terms that are used for descriptive and clarity purposes and that can vary accordingly depending on the orientation in which the components in the figures are placed.

As shown in fig. 1, 2 and 3, the pipe connecting structure of the present embodiment is used for connecting a pipe body 7 and a pipe body 8.

This connection structure is including the sleeve 6 of cover on body 7 and

body

8, and 6 both ends symmetries of sleeve, and 6 both ends of sleeve are located to body 7 and body 8 that need connect, and sleeve 6 slides along the body, locks or unclamps through the retaining member at 6 both ends of sleeve.

As shown in fig. 3 and 6, a sealing ring accommodating groove 6.2 is formed in the inner side of the end portion of the sleeve 6, threads 6.1 are formed in the outer side of the end portion of the sleeve, a sealing ring 5 is arranged in the sealing ring accommodating groove 6.2, and the sealing ring 5 is fixed in the sleeve 6 by a sealing ring retaining ring 4.

As shown in fig. 3, the retaining member includes snap ring fixation nut 2, adjusting nut 1 and reverse snap ring 3, as shown in fig. 4, 5, 2 inboard from the top down of snap ring fixation nut include with adjusting nut complex screw thread 2.1, the snap ring holds chamber 2.2 and with sleeve outside complex screw thread 2.3, reverse snap ring 3 is located the snap ring and is held in chamber 2.2, adjusting nut 1 screw in snap ring fixation nut 2 in-process, the sealing washer keeps off 4 outsides of ring and supports reverse snap ring 3, adjusting nut 1 bottom is pressed reverse snap ring 3 front end chucking part and is outwards turned down, make the body can slide, as shown in fig. 3, 12.

As shown in fig. 7, 8 and 9, the reverse snap ring 3 comprises a ring body, a through groove 3.2 is formed in the inner circle 3.3 and the outer circle 3.1 of the ring body at intervals, the inner diameter of the ring body is smaller than that of the ring body, the inner circle 3.3 and the outer circle 3.1 are arranged on different planes, the outer side of the ring body is clamped in the snap ring accommodating cavity 2.2, the inner side of the ring body is clamped on the pipe body, and the inside of the ring body is turned outwards in the lateral direction under the pressing.

In this embodiment, lead to groove 3.2 width and be 0.8cm, highly be 2.3cm, lead to groove 3.2 bottom radius and be 0.3cm, excircle and planar contained angle are 8, and the contained angle between interior circle and the excircle is 144, and 3 thicknesses of reverse snap ring are 1.5cm, and such size makes 3 overall structure stability of reverse snap ring better, can take place buckling and deformation of certain degree, but can not damaged.

As shown in fig. 10, the upper side of the sealing ring baffle ring 4 is provided with a ring groove which can accommodate the reverse snap ring 3 to turn outwards and also can form a limit position, and the lower side of the sealing ring baffle ring 4 is step-shaped and matched with the shape of the sealing ring 5. The inner diameter of the seal ring 5 matches the inner diameter of the pipe body as shown in fig. 11. The inner diameter of the adjusting nut 1 is matched with the inner diameter of the pipe body.

The pipeline connecting method of the embodiment is implemented by using the pipeline connecting structure, and the specific process is as follows:

with the connection structure combination, snap ring fixation nut 2 fixes on sleeve 6 for reverse snap ring 3 compresses tightly the sealing washer and keeps off ring 4, and the sealing washer keeps off ring 4 and compresses tightly sealing washer 5, and the sealing washer keeps off ring 4 and sealing washer 5 and is located sealing washer holding tank 6.2, rotates adjusting nut 1 to the sleeve direction, makes adjusting nut 1 press reverse snap ring 3 inboardly, makes 3 inboards of reverse snap ring turn up.

The pipe body 7 and the pipe body 8 to be connected are inserted from the adjusting nuts 1 at the two ends of the sleeve 6 and extend into the sleeve 6, so that the sealing rings 5 at the two ends are attached to the pipe body.

The adjusting nut 1 is rotated in the opposite direction, so that the inner side of the reverse snap ring 3 is tightened and clamped on the pipe body towards the direction of the pipe body, the adjusting nut 1 is removed, and the connecting structure is integrally fixed on the pipe body.

During the dismantlement, rotate adjusting nut 1 to 6 directions of sleeve and make adjusting nut 1 press reverse snap ring 3 inboards for 3 inboards of reverse snap ring turn up again, with connection structure and body separation.

Preferably, the outer sides of the tube body 7 and the tube body 8 may be provided with positioning grooves (dents) in which the reverse snap rings are locked. The embodiment can be a metal pipe body, that is to say, the metal pipe body that has the indentation, the sleeve 6 that overlaps outside the metal pipe body that has the indentation and with sleeve 6 matched with sealing washer 5, sealing washer baffle ring 4 to and be equipped with the nut that fixed reverse elasticity wedge rand (reverse snap ring 3) link to each other, and be equipped with the reverse elasticity wedge rand regulating part (adjusting nut 1) that opens and shuts of hollow screw thread at the inboard one end of the reverse elasticity wedge rand nut that is equipped with. Used for adjusting the opening and closing of the reverse elastic wedge-shaped clamping ring. The disassembly and the connection of the metal pipeline with the concave marks are realized by adjusting the opening and the closing of the reverse elastic wedge-shaped clamping ring.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A pipe connection structure characterized in that: including the sleeve of cover on the body, sleeve both ends symmetry, the body that needs to connect locates sleeve both ends, and the sleeve slides along the body, carries out reverse locking or unclamps through the retaining member at sleeve both ends.

2. The pipe connecting structure according to claim 1, wherein: the sleeve tip inboard is equipped with the sealing washer holding tank, and the outside is equipped with the screw thread, and the sealing washer is located the sealing washer holding tank, and the sealing washer keeps off the ring and fixes the sealing washer in the sleeve.

3. The pipe connecting structure according to claim 2, wherein: the retaining member includes snap ring fixation nut, adjusting nut and reverse snap ring, and snap ring fixation nut inboard from the top down include with adjusting nut complex screw thread, snap ring hold the chamber and with sleeve outside complex screw thread, during the snap ring was located to reverse snap ring holds the chamber, adjusting nut screw in snap ring fixation nut in-process, the adjusting nut bottom is pressed reverse snap ring front end chucking part and is outwards turned up for the body can slide.

4. The pipe connecting structure according to claim 3, wherein: the upper side of the sealing ring baffle ring is provided with a ring groove which can accommodate the outward turning of the reverse snap ring, and the lower side of the sealing ring baffle ring is step-shaped and matched with the sealing ring in shape.

5. The pipe connecting structure according to claim 3, wherein: the reverse snap ring comprises a ring body, through grooves are formed in the inner circle and the outer circle of the ring body at intervals, the inner diameter of the ring body is smaller than that of the ring body, the inner circle and the outer circle of the ring body are arranged on different planes, the outer side of the ring body is clamped in the containing cavity of the snap ring, the inner side of the ring body is clamped on the pipe body, and the inside of the ring body is outwards turned when the adjusting.

6. The pipe connecting structure according to claim 1, wherein: the inner diameter of the sealing ring is matched with the inner diameter of the pipe body.

7. The pipe connecting structure according to claim 3, wherein: the inner diameter of the adjusting nut is matched with the inner diameter of the pipe body.

8. A method of connecting pipes, comprising: use of the pipe connection structure according to any one of claims 1 to 7, wherein the specific process is as follows:

9. The pipe connecting method according to claim 8, wherein: the outside of the tube body is provided with a positioning groove, and the reverse snap ring is clamped in the positioning groove in a locking state.